PURPOSE: To evaluate the mutation prevalence and phenotype in genes involved in the ocular retinoid metabolism. DESIGN: We analyzed LRAT, encoding the lecithin retinol acyltransferase, and RDH10, a retinal pigment epithelium-specific retinol dehydrogenase. METHODS: We screened by denaturing-high performance liquid chromatography (D-HPLC) and direct sequencing all coding exons of LRAT and RDH10 in 216 patients, including 134 with simplex or multiplex retinitis pigmentosa and 82 with various types of flecked retinal dystrophies. RESULTS: Only nonpathogenic variants were found in this series. In an additional 2.5-year-old patient presenting with an "RPE65" phenotype (night blindness, photoattractivity, and visual improvement several months after birth), we discovered a homozygous deletion in LRAT (c.217_218delAT) leading to a premature stop at codon 120. CONCLUSIONS: The phenotype of patients with mutations in LRAT is similar to that of patients with mutations in RPE65, suggesting the need to systematically screen both genes in case of typical phenotype.
PURPOSE: To evaluate the mutation prevalence and phenotype in genes involved in the ocular retinoid metabolism. DESIGN: We analyzed LRAT, encoding the lecithin retinol acyltransferase, and RDH10, a retinal pigment epithelium-specific retinol dehydrogenase. METHODS: We screened by denaturing-high performance liquid chromatography (D-HPLC) and direct sequencing all coding exons of LRAT and RDH10 in 216 patients, including 134 with simplex or multiplex retinitis pigmentosa and 82 with various types of flecked retinal dystrophies. RESULTS: Only nonpathogenic variants were found in this series. In an additional 2.5-year-old patient presenting with an "RPE65" phenotype (night blindness, photoattractivity, and visual improvement several months after birth), we discovered a homozygous deletion in LRAT (c.217_218delAT) leading to a premature stop at codon 120. CONCLUSIONS: The phenotype of patients with mutations in LRAT is similar to that of patients with mutations in RPE65, suggesting the need to systematically screen both genes in case of typical phenotype.
Authors: Sylwia Chelstowska; Made Airanthi K Widjaja-Adhi; Josie A Silvaroli; Marcin Golczak Journal: Biochemistry Date: 2017-08-15 Impact factor: 3.162
Authors: Xia Wang; Hui Wang; Ming Cao; Zhe Li; Xianfeng Chen; Claire Patenia; Athurva Gore; Emad B Abboud; Ali A Al-Rajhi; Richard A Lewis; James R Lupski; Graeme Mardon; Kun Zhang; Donna Muzny; Richard A Gibbs; Rui Chen Journal: Hum Mutat Date: 2011-09-23 Impact factor: 4.878
Authors: Grzegorz Bereta; Philip D Kiser; Marcin Golczak; Wenyu Sun; Elise Heon; David A Saperstein; Krzysztof Palczewski Journal: Biochemistry Date: 2008-08-23 Impact factor: 3.162